video chat software: Appear in

My library has started using  Appear in for video chatting, it as apps for phones, and easy webpage interface:  https://appear.in/

• No registration or downloads
  Guests won’t have to register to join. Just send them the room link to join in the browser.
• Group video conversations
  You can have video conversations with up to 8 people at once.
• Simple screensharing
  Want to share your screen to present something? Of course you can!
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